I think everyone has a leg up if they know how to sell. This may be the first time I’ve ever quoted Mark Cuban, but I really do agree with him that, “If you know how to sell, you’ll never be unemployed.”

Keep in mind… - You’re selling yourself as a capable interaction designer - You’re selling your design work to a product manager or creative director to say “this is the right thing” - You’re selling your work to clients saying “we’re experts”

So yes, I think everyone—not just designers—should know about about marketing and selling!